Cup holder



FIG. 1 is a perspective view of a cup holder showing our new design, the cup shown in broken lines is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a plan view from above of the cup holder;

FIG. 3 is a side elevational view of a cup holder;

FIG. 4 is a front elevational view of the cup holder;

FIG. 5 is a rear elevational view of the cup holder; and,

FIG. 6 is a plan view from below of the cup holder. 

The ornamental design for a cup holder, as shown and described. 